Cranial nerve testing and abnormal findings NPTE
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| show | Identification of familiar odors (e.g. chocolate, coffee)
Possible abnormal findings: Anosmia (inability to detect smells), seen with frontal lobe lesions
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| Examination of CN II integrity and abnormal findings | show 🗑
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| show | Test upward, downward, and medial gaze. Test reaction to light
Abnormal findings: Aniscoria (unequal pupils;Horner's syndrome)
Strabismus: eye pulled outward by CN VI, Ptosis, pupillary dilation, inability to look up down or medially
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| Examination of CN IV integrity and abnormal findings | show 🗑
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| show | Test pain light touch sensations on forehead, cheeks and jaw (eyes closed)
Test corneal reflex
Abnormalities: loss of facial sensations. Loss of corneal reflex ipsilaterally (blinking in response to corneal touch)
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| Examination of CN VI integrity and abnormal findings | show 🗑
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| Examination of CN VII integrity and abnormal findings | show 🗑
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| Examination of CN VIII integrity and abnormal findings | show 🗑
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| show | Test: Gag reflex: stimulate back of throat lightly; ability to swallow
Abnormal findings: absent gag reflex
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| Examination of CN X integrity and abnormal findings | show 🗑
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| Examination of CN XI integrity and abnormal findings | show 🗑
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| show | Test: tongue protrusion, listen to patients articulation
Abnormality: if injured tongue deviates toward injured side.
Dysarthria (lesions of CN X or XII). Atrophy or fasiculations of tongue.
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